They probably will still have truckers, because there is no guarantee what a robot might do. But they are looking at reducing how many will be needed. If they can, by reducing human involvement, lengthen the time a person is involved by the wheel, by even just an hour, that’s billions of dollars saved over the long haul.
The stories I’ve seen on this that they will only need drivers in towns not on the open roads. These things would cost millions of jobs